نتایج جستجو برای: p fe

تعداد نتایج: 1339127  

Journal: :The British journal of nutrition 2010
Thabata Koester Weber Karine de Cássia Freitas Olga Maria Silvério Amancio Mauro Batista de Morais

There is concern regarding the possible negative effects of ingestion of dietary fibre on growth and intestinal Fe absorption in infants. The aim of the present study was to compare the effect of a fibre mixture on the growth and the intestinal absorption of Fe in rats with Fe-deficiency anaemia with that of a diet without fibres. Faecal weight and caecal pH were also evaluated. According to th...

Journal: :Dalton transactions 2009
Wen-Guang Wang Hong-Yan Wang Gang Si Chen-Ho Tung Li-Zhu Wu

A set of fluorophenyl-substituted adt-bridged Fe2S2 active site models of Fe-only hydrogenase, [(micro-SCH2)2NR]Fe2(CO)6 (, R=C6F4CF3-p; , R=C6H4CF3-p) and [(micro-SCH2)2NR]Fe2(CO)5(PPh3) (, R=C6F4CF3-p; , R=C6H4CF3-p), have been synthesized and well characterized. Spectroscopic and electrochemical studies demonstrate that the aryl-substituted complexes are stable toward a strong acid HBF4/Et2O...

2014
Weiming Yang Haishun Liu Yucheng Zhao Akihisa Inoue Kemin Jiang Juntao Huo Haibo Ling Qiang Li Baolong Shen

Fe-based bulk metallic glasses (BMGs) have attracted great attention due to their unique magnetic and mechanical properties, but few applications have been materialized because of their brittleness at room temperature. Here we report a new Fe(50)Ni(30)P(13)C(7) BMG which exhibits unprecedented compressive plasticity (>20%) at room temperature without final fracture. The mechanism of unprecedent...

Journal: :Journal of phycology 2012
Anne-Carlijn Alderkamp Gemma Kulk Anita G J Buma Ronald J W Visser Gert L Van Dijken Matthew M Mills Kevin R Arrigo

The effects of iron limitation on photoacclimation to dynamic irradiance were studied in Phaeocystis antarctica G. Karst. and Fragilariopsis cylindrus (Grunow) W. Krieg. in terms of growth rate, photosynthetic parameters, pigment composition, and fluorescence characteristics. Under dynamic light conditions mimicking vertical mixing below the euphotic zone, P. antarctica displayed higher growth ...

عبدالمجید رونقی, , منوچهرمفتون, , محمدرضا چاکرالحسینی, , نجف علی کریمی, ,

Iron (Fe) availability is low in calcareous soils of Iran due to high pH levels and presence of excessive amounts of CaCO3. Overfertilization by phosphorus (P) fertilizers may also decrease Fe availability. The objective of this study was to evaluate the effects of P, Fe and their interactions on the growth and chemical composition of soybean [Glycine max (L.) Merrill] under greenhouse conditio...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2005
Junlong Zhang Rohan M Lewis Chunli Wang Nicholas Hales Christopher D Byrne

Maternal dietary Fe restriction reduced fasting plasma cholesterol and triglyceride (TG) concentrations in the fetuses, as well as decreased plasma TG levels in the adult offspring. To investigate how maternal Fe restriction was affecting fetal lipid metabolism, we investigated whether there were changes in liver lipid metabolism in the full-term fetuses. There was a approximately 27% (P < 0.05...

Journal: :journal of agricultural science and technology 2010
a. samadi

to evaluate the relationships between soil inorganic phosphorus p (pi) fractions, the soil p test and plant parameters such as plant p uptake, dry matter yield, tissue p concentra-tion and relative yield, glasshouse experiments and chemical analyses were conducted on 13 calcareous soils from six agricultural and seven adjacent bushland (virgin soil) sites. four rates of p (0, 15, 30, 60 mg/kg s...

ژورنال: علوم آب و خاک 2002
نجف‌ علی کریمیان, , محمدرضا چاکرالحسینی, , عبدالمجید رونقی, ,

Phosphorus (P) and iron (Fe) are essential nutrients for plants. Iron availability is low in calcareous soils of Iran due to the excessive amounts of CaCO3 and high pH. Overfertilization of P fertilizers may also decrease Fe availability. The objective of this study was to evaluate the effect of P and Fe on the growth and chemical composition of corn (Zea mays L.) under greenhouse conditions. T...

2010
H. A. Elliot J. M. Potter J.-H. Kang R. C. Brandt G. A. O’Connor

Matching biosolids application rates to crop phosphorus (P) needs requires quantifying the P fertilizer replacement value of biosolids. Neutral ammonium citrate (NAC) extraction of P, used for assessing available P in mineral fertilizers, was evaluated for 35 different biosolids. Biosolids NAC-P was not statistically different (p 1⁄4 0.05) from total P using strong acid digestion (EPA 3051-P). ...

2002
Tim F. Rozan Martial Taillefert Robert E. Trouwborst Brian T. Glazer Shufen Ma Julian Herszage Lexia M. Valdes Kent S. Price George W. Luther

We conducted a study to determine the seasonal relationship between iron, sulfur, and phosphorus in the upper sediments and pore waters of a shallow intercoastal bay. From April 1999 to September 2000, sediment cores were collected from Rehoboth Bay, Delaware. Analyses of the sediments in the upper 4 cm revealed that redox conditions controlled Fe-S-P concentrations in the sediments, pore water...

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